AgraCo Mosquito Skin Patch Body Absorbs 36-Hour Mosquito Deterrent All Natural Deterrent Deet-Free Made In The USA Family Travel 2-Pack (20 patches) With Mosquito Patch, one application lasts up to 36 hours. These must be reapplied often and washed off when no longer needed These Patches are non-toxic, and safe enough for infants. The other alternatives are sprays that contain DEET. New and Improved All Natural Ingredients, Concentrated for faster absorption. Do all your favorite activities without even realizing the mosquito patch is there. Spend some quality outdoor time without worrying about getting bitten by mosquitoes.